Machine element



W., IM. Nil-ELM" MACHINE ELEMENT rgnal Filed AHH.. 6

Patented Dec. 27, 1927.

WILLIAM M. KELLY, F WESTFIELD, NEW JERSEY.

MACHINE ELEMENT.

Original application led August 6, 1921, Serial No. 490,290.

Divided and this application led June 13,

1925. Serial No. 36,943. i

This application is a division of my ccpending application Serial No.490,290, filed August 6, 1921. i

This invention relates to certain improvements in supporting bracketsfor the paper guide rollers of printing presses, and the object of theinvention is to provide 1mproved means for frictionally holding suchbrackets and the rollers carried thereby in l@ any position to whichthey may be adjusted, while permitting manual adjustment thereof eithertransversely of or about the shaft on which the brackets are mounted,and frictionally holding the rollers in raised posil tion When desired.

In the accompanying drawing:

Figure 1 is a top plan View of a roller bracket, and its support,embodying my in vention; and

Figure 2 is a vertical section thereof, on the line 2-2 of Figure 1.

In the use of guide rollers of the character referred to, it isnecessary at times to adjust such rollers longitudinally of their support, to take care of paper of different Widths. As shown, for thispurpose the roller 819 is carried by a bracket 320 mounted on a stubshaft 3192 at the outer end of the bracket 32H, the inner end of thelatter being bifurcated, and the arms thus formed are slidably mountedon a shaft 300.

At the base of the arms the surface 322` is formed concentric with theaxis of the shaft 300. Mounted on the shaft between the arms is a collar323 which is formed with an eccentric bore 324- for the shaft Thiscollar is frictionally held to the shaft by a plug 325 disposed in aradial recess 326 and yieldingly forced into contact with the shaft by aspring 327. This recess 326 is made by drilling through from theopposite side of the collar. As the collar 323 :is frictionally held onthe shaft it holds bracket 320 against longitudinal movement.Furthermore because of the eccentric surface of the collar and theconcentric surface 322 of the bracket., the bracket and roller may beswung up- Wardly to the position shown in dotted lines and held there.It is to be understood, how* ever, that the frictional resistance toadjustment is of no substantial amount, so that the bracket may beadjusted on the shaft very easily by the operator.

It Will be understood that the sheets of paper, are fed between theroller 319 and roller 3191, the latter roller `also being adjustableaxially of its supporting shaft.

Having thus described the invention, what is claimed as nevi7 anddesired to be secured by Letters Patent is:

l. rlhe combination with an imperforate shaft of a device longitudinallyadjustable on the shaft and means to frictionally hold the device inadjusted position including a collar on the shaft having a flat memberyieldingly bearing directly on the shaft.

2. The combination with a shaft of a roller carrying devicelongitudinally and rotatably adjustable on the shaft and means tofrictionally hold the device in adjusted position including a collar onthe shaft having a radially spring pressed member frictionally bearingon the shaft.

3. The combination With a shaft of a roller carrying devicelongitudinally adjustable on the shaft and means to frictionally holdthe device in adjusted position including a collar on the shaft having aradial recess opening in the bore of the collar, and a spring pressedmember in said recess bearing on the outer surface of the shaft.

t. The combination wth a shaft of a roller carrying bracket rotatablyand longitudinallly adjustable on said shaft and means to limit theextent of rotative movement and hold it against longitudinal movement including a circular collar eccentrically mounted on the shaft and havingyielding friction means bearing on the shaft.

5. The combination with a shaft of a roller carrying bracket having apair of spaced arms rotatively and longitudinally adjustable on saidshaft, and means to limit the extent of rotative movement of the bracketand hold it against longitudinal movement including a circular collareccentrically mounted on said shaft between said arms and havingyielding friction means bearing on said shaft.

6. The combination with a shaft of a roller carrying bracketlongitudinally adjustable on said shaft having a pair of spaced armsprovided with bores receiving the shaft, and means to frictionally holdthe bracket against adjustment comprising a collar on the shaft betweensaid arms and having a yielding friction device engaging the shaft.

7. The combination with a shaft of a roller carrying member rotativelyand longitudinally movable thereon and means to frictionally hold itfrom movement comprising a, radially spring pressed Hat memberfrictionally engaging the shaft.

8. The combination with a shaft kof a roller carrying memberoscillatably mounted on said shaft, positioning means for said membercomprising a collar having a bore receiving said shaft, and formed witha radial recess opening from said bore, a flat plug in said recess and aspring forcing said plug into frictional engagement with said shaft.

9. As an article of manufacture, a. circular 'collar having an eccentricbore, and formed with a radial recess opening from said bore in thedirection of its ecccntricity, a flat shaftengaging friction plug insaid recess, and a spring in the recess pressing the plug in- Wardly.

In testimony whereof I hereunto alix my signature.

VILLIAM M. KELLY.

